Geriatric oncology

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Geriatric oncology is a branch of medicine that is concerned with the diagnosis and treatment of cancer in the elderly, usually defined as aged 65 and older. This fairly young but increasingly important subspecialty incorporates the special needs of the elderly into the treatment of cancer.

Contents

In the last few years, this particular subspecialty has received a lot of attention. A large proportion of the population of developed countries are aging. In the United States, 20% of the population will be older than 65 years of age by the year 2030. Those 85 years and older will be the most rapidly growing group. [1] This is compounded by the fact that the majority of cancer patients will be in this age group. Age in itself is one of the most important risk factors for developing cancer. Currently, 60% of newly diagnosed malignant tumors and 70% of cancer deaths occur in people aged 65 years or older. [2] Many cancers are linked to aging; these include breast, colorectal, prostate, pancreatic, lung, bladder and stomach cancers.

Because most non-pediatric cancer patients are older, there is a saying that all oncologists who are not pediatric oncologists are geriatric oncologists.

Unique concerns of older cancer patients

For many reasons, older adults with cancer have different needs than younger adults with the disease. For example, older adults: [3] [4]

Clinical trials usually exclude the elderly, and therefore, guidelines for treatment of cancer were mainly based on the younger population. A lot of research in this area is needed. [6]

Just as a child would see a pediatrician for medical care, an older patient should go to a geriatrician. An older patient with cancer will benefit from the expertise of a geriatric oncologist. Older patients have unique needs because of their often complex medical histories, numerous drugs they are taking, their social situations, possible problems with cognitive dysfunction related to age, and general diminution of organ function that occurs naturally in the older population. [7] For these reasons, it is important that older patients (especially if frail, or have multiple medical problems) being considered for cancer treatment should undergo comprehensive geriatric assessment, to take all these factors into account. [8]

Origins

Rosemary Yancik first organized a symposium on geriatric oncology sponsored by the National Cancer Institute and the National Institute on Aging. [9] A 1988 ASCO Presidential Address published in the Journal of Clinical Oncology by Dr. B.J. Kennedy encouraged the study of aging and cancer. [10]

The American Society of Clinical Oncology (ASCO) has played a vital role in promoting the field of geriatric oncology in the United States. B.J. Kennedy, MD was one of the fathers of this field. In the late 1980s, the ASCO Annual Meetings started including educational sessions and presentations pertaining to this field. The Journal of Clinical Oncology started publishing more articles pertaining to geriatric oncology. ASCO has also funded training for oncology fellows. [11]

One of a handful of people around the world who created the field of geriatric oncology during the 1980s was Lodovico Balducci. He was co-editor of the first major medial textbook on the subject, Geriatric Oncology, published in 1982, and has been honored with the B.J. Kennedy Award for Scientific Excellence in Geriatric Oncology from the American Society of Clinical Oncology. [12]

Training and education programs

Training programs specifically in the geriatric oncology subspeciality have been established. In the United States, the ASCO Geriatric Oncology Fellowship program was developed with funding from the John A. Hartford Foundation. [13] The American Board of Internal Medicine approved a 3-year combined fellowship training program in medical oncology and geriatrics. Graduates of this program will be eligible to be board certified in both specialties. Some fellows opt to also obtain additional training and certification in hematology as well. 10 institutions were identified and a curriculum was designed and instituted.

An example of a geriatric oncology fellowship training curriculum can be found here.

Examples of Recipients of the ASCO-Hartford Foundation Geriatrics/Oncology Training Program Development Grant
Boston University Medical Center
Duke University Medical Center
Johns Hopkins University
Northwestern University
University of Chicago
University of Colorado
University of Michigan
University of Rochester

Internationally, a diploma in geriatric oncology has now been established in France.

The first textbook in the field, Geriatric Oncology, was published by Lodovico Balducci et al. [14] There are now many others.

Assessment

Typically, new patients meet with either a geriatric oncologist (or sometimes a medical oncologist and geriatrician separately), a psychosocial professional, and a nutritionist, all of whom work together to provide a comprehensive geriatric assessment of the patient's fitness to withstand the therapy necessary to treat his or her cancer. A number of validated screening tools are recommended have been identified to aid this process. [15] Following the initial assessment, the team meets to evaluate the patient's fitness for therapy. The team's decisions and recommendations are then presented to the patient and his or her family as well as to the patient's primary physician when appropriate. After these discussions, and ideally with shared decision-making, treatment for the patient's cancer is decided on and initiated. [7]

Organization and societies

The Geriatric Oncology Consortium is a non-profit organization dedicated to addressing the age based disparities in research, education and treatment in the older adult cancer population. It is leader in developing and conducting research in older adults and providing older adult cancer education to medical professionals, patients, caregivers and the general public. [16]

The American Society of Clinical Oncology (ASCO) has started a geriatric oncology subspeciality. A webpage dedicated to article and resources about geriatric oncology is available. [17]

The World oncology network has established a directory for geriatric oncology to promote this subspeciality. [18]

The International Society of Geriatric Oncology or Société Internationale d'Oncologie Gériatrique in French, hence the acronym SIOG, was founded in 2000 and was officially registered as a Not-for-profit organisation under the Swiss law in October 2012. SIOG is a multidisciplinary society, including physicians in the fields of oncology and geriatrics, and allied health professionals and has over 1000 members in more than 40 countries around the world. The major risk factor for cancer is age, and with the aging of the world population, a major epidemiologic challenge is before us.

The goal of SIOG is to foster the development of health professionals in the field of geriatric oncology, in order to optimize treatment of older adults with cancer. SIOG promotes efforts in 3 strategic directions:

1. Education
2. Clinical practice
3. Research

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References

  1. ↑ The Oldest Old. Suzman RM Manton KG (eds.).New York, NY, Oxford University Press, 1992.
  2. ↑ Yancik R, Ries LA (2000). "Aging and cancer in America. Demographic and epidemiologic perspectives". Hematol. Oncol. Clin. North Am. 14 (1): 17–23. doi:10.1016/S0889-8588(05)70275-6. PMID   10680069.
  3. ↑ Geriatric oncology specialists
  4. ↑ Cleveland Clinic, Geriatric oncology clinic
  5. ↑ Besdine, RW. "Indirect Influences on Health in Older People". MSD Manual. Retrieved 21 January 2019.
  6. ↑ Hutchins LF; Unger JM; Crowley JJ; et al. (1999). "Underrepresentation of patients 65 years of age or older in cancer-treatment trials". N Engl J Med. 341 (27): 2061–2067. doi: 10.1056/nejm199912303412706 . PMID   10615079.
  7. 1 2 Geriatric oncology org
  8. ↑ "Practice Guideline: Comprehensive Geriatric Assessment (CGA) in oncological patients" (PDF). International Society of Geriatric Oncology. Retrieved 25 November 2018.
  9. ↑ Yancik R (ed): Perspectives on Prevention and Treatment of Cancer in the Elderly. New York, Raven Press, 1983.
  10. ↑ Kennedy BJ (1988). "Aging and cancer". J Clin Oncol. 6 (12): 1903–1911. doi:10.1200/JCO.1988.6.12.1903. PMID   3058879.
  11. ↑ Rao AV, Hurria A, Kimmick G, Pinheiro S, Seo PH (2008). "Geriatric oncology: past, present, future". J Oncol Pract. 4 (4): 190–2. doi:10.1200/JOP.0846001. PMC   2793949 . PMID   20856771.
  12. ↑ Kevin Begos, "Personalized Medicine", CR Magazine, Spring 2009
  13. ↑ "A Commitment to Geriatric Oncology ASCO Foundation".
  14. ↑ Balducci L, Lyman GH, Ershler WB: Geriatric Oncology. New York, NY, J.B. Lippincott, 1992, 1-409.
  15. ↑ "Comprehensive Geriatric Assessment (CGA) of the older patient with cancer | SIOG". www.siog.org. SIOG. Retrieved 26 November 2018.
  16. ↑ Geriatric Oncology Consortium
  17. ↑ Geriatric oncology at ASCO
  18. ↑ World oncology network, Geriatric oncology
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